Still a month away, but Lenovo has just released their "Christmas Savings 4 Day Sale" coupon for this weekend. WSNO3925 to get 10%-30% off on ThinkPad, ThinkCentre, ThinkStation and ThinkServer lines of products.

ThinkPad laptop offer

10% off all ThinkPad laptops when your configuration is $599 or more
15% off all ThinkPad laptops when your configuration is $700 or more
20% off all ThinkPad laptops when your configuration is $2,000 or more
30% off all ThinkPad laptops when your configuration is $3,000 or more

ThinkCentre desktop offer

10% off all ThinkCentre desktops when your configuration is $800 or more
20% off all ThinkCentre desktops when your configuration is $1,500 or more
30% off all ThinkCentre desktops when your configuration is $2,200 or more

ThinkStation workstation offer

10% off all ThinkStation workstations
20% off all ThinkStation workstations when your configuration is $1,600 or more
30% off all ThinkStation workstations when your configuration is $3,000 or more

ThinkServer TS130 offer

15% off all ThinkServer TS130 when your configuration is $1,500 or more
20% off all ThinkServer TS130 when your configuration is $2,200 or more

The sweet spot for ThinkPad seems to be between $700 and $1000 where you get 15% off (usually 10% off at this price range). Some of OzBargainers' favourites: